Theft Deterrent System
TERMINALS OF ECU1. CHECK INSTRUMENT PANEL J/B ASSY (MULTIPLEX NETWORK BODY ECU)
a. Disconnect the B4, B5, B6 and B7 ECU connectors.
b. Disconnect the 1A, 1D, 1F, 1M and IO J/B connectors.
c. Check the voltage and resistance between each terminal of the wire harness side connectors and body ground.
If the result is not as specified, there may be a malfunction on the wire harness side.
d. Reconnect the B4, B5, B6 and B7 ECU connectors.
e. Reconnect the 1A, 1D, 1F, 1M and IO J/B connectors.
f. Check the voltage between each terminal of the connectors and the body ground.
If the result is not as specified, the J/B assembly (body ECU) may have a malfunction.